MacDon A40-D Pull-Type - Manual (Page 72)

SECTION 6 OPERATION
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Revision F
6.17.4 Auger Position
CAUTION
To avoid personal injury, before servicing
header/mower conditioner or opening drive
covers, follow procedures in Section 7.1
PREPARATION FOR SERVICING.
Auger position has been factory-set, and should
not normally require adjustment.
For nearly all conditions, the auger performs
best when set as close as possible to the
stripper bars without rubbing. This is especially
important in grass and other crops that have a
tendency to wrap.
Component wear may cause clearances to
become excessive, resulting in feeding problems
and uneven windrows.
To make adjustments to auger position, refer to
the Sections 6.17.4.1 to 6.17.4.6.
NOTE
In heavier crops it may be necessary to
remove the front stripper bar for
smoother crop flow across the auger.
Refer to Section 7.11.5 Stripper Bars.
NOTE
The auger should clear the stripper bars
on the auger pan by approximately
1/32–5/32 in. (1–4 mm). Shimming the
stripper bars may be required. Refer to
Section 7.11.5 Stripper Bars.
6.17.4.1 Auger Fore-Aft Adjustment: A30-D
CAUTION
To prevent accidental movement of
windrower, place all controls in NEUTRAL or
in PARK, engage park brake (if applicable),
shut off engine, and remove key.
a. Open LH endshield.
b. Loosen auger drive chain (A) as follows:
1. Loosen nut (B) on idler sprocket support.
2. Turn adjuster bolt (C) to loosen chain (A).
c. Loosen four nuts (D).
d. Loosen jam nut on adjuster bolt (E), and turn
adjuster bolt (E) to adjust auger fore-aft position.
e. Tighten jam nut, and four nuts (D).
f. Tighten auger drive chain (A) as follows:
1. Turn adjuster bolt (C) to achieve 1/4 in.
(6 mm) slack at mid-span of chain (A).
2. Tighten nut (B) on idler sprocket support.
3. Rotate auger, and check chain for slack at
tightest point. Readjust position of idler
sprocket to achieve required slack.
(continued next page)
C
B
A
1/32–5/32 in.
(1–4 mm)
CLEARANCE
1/32–5/32 in.
(1–4 mm)
CLEARANCE
1/32–5/32 in.
(1–4 mm)
CLEARANCE
AUGER
D
E